Month: June 2010

Chris Schaie’s mechanical irises for sale

Chris Schaie’s mechanical irises for sale

When I first saw Chris’s gorgeous brass-and-wood irising door peephole mechanism in the ShopBot booth at Maker Faire, I knew it was something special: A beautiful piece of machinery, designed and built solely for the pleasure of operating and observing its operation. When Chris contacted us wanting to sell them in the Makers Market, naturally I was excited, but I was also a bit skeptical. I couldn’t imagine that such a large, relatively complex machine of solid brass and wood could be manufactured and sold at anything like a reasonable price point. But the $285 Chris is now asking, while certainly not cheap, is about 40% of what I was expecting to see when I clicked on his listing. I will be surprised if he can afford to continue selling them at that price. Which is why I already bought mine.

Math Monday: Modular Kirigami

Math Monday: Modular Kirigami

By George Hart for the Museum of Mathematics With paper and scissors and patience, you can make an amazing variety of mathematical forms. The paper sculpture below consists of twenty identical components that form a complex linkage. They lock together without glue in a very symmetric arrangement. If you want to try this, the template […]